Alawnmower engine running for 20 min does 4,560,000 j of work. what is the power output of the engine? (power: p = w/t)

Explanation:

Power is defined as the rate at which work is done in per unit time.

Mathematically,            

It is given that work done by engine is 4,560,000 J and time is 20 minutes.

There is 60 seconds in 1 minute. So, convert minutes into seconds as follows.

                 = 1200 seconds

Calculate power output of the engine as follows.

                                        =

                                        = 3800 J/s

  or,                                 = 3800 Watt

Therefore, the power output of the engine is 3800 Watt.

80cm/s.

24cm/s.

53.3cm/s.